US Bridges

Olympic Natl DR over Drainage Reserve

Good

Harris County, Texas · 0.04 MI N of Madera Run · Structure no. 121020A65967426

Built
2018
7 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
200
2019 count
Owner
County
County Highway Agency

About this bridge

Olympic Natl DR over Drainage Reserve is a concrete culvert carrying Olympic Natl DR over Drainage Reserve in Harris County, Texas. It was built in 2018, so it is 7 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 200 vehicles a day, projected to reach 1,000 by 2039. The structure is 29 ft (8.8 m) long and 91 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesOlympic Natl DR
CrossesDrainage Reserve
Location0.04 MI N of Madera Run
RouteCity Street 0
CountyHarris County
StateTexas
Coordinates29.95741, -95.18942
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length29 ft (8.8 m)
Longest span12 ft (3.7 m)
Deck width91 ft (27.6 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2019)
Projected traffic1,000 by 2039
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Olympic Natl DR over Drainage Reserve built?

It was built in 2018, making it 7 years old in 2025.

What condition is Olympic Natl DR over Drainage Reserve in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does Olympic Natl DR over Drainage Reserve carry?

About 200 vehicles per day (2019 count).

How long is Olympic Natl DR over Drainage Reserve?

The structure is 29 ft (8.8 m) long with a longest span of 12 ft (3.7 m) and a deck 91 ft wide.

Who owns Olympic Natl DR over Drainage Reserve?

It is owned by the County Highway Agency.